Improved window-soeeei



CHARLES C. PLAISTED, OF HARTFORD, CONNECTICUT.'

Letters Patent No. 73,925, dated January 28, 1868.

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TO ALL vWHOM IT MAY CONCERN:V

`Be it'known that I, OHnRIES C. PLAISTED, of Hartford, in the county ofHartford, and State of Connecticut, .have invented 'a new and improvedSelf-Adjusting Window-Screen; and do hereby declare that the Afollowingis d. full, clear, and exact description thereof, reference being had tothe accompanying drawings, and to the letters 'of reference markedthereon. l

Figure 1 shows a front View of a windowv having theimprovedself-adjusting screen attached to both top and bottom" sashes.

Figure 2 shows a section of the window, with an end view of the screensand accompanying parts,

My invention consists in attaching the screen to thewindow-frame andsash in such a manner that when the sash is opened the screen covers'theopening, however much or little the sash may be moved, by unrolling froma roller, which may be attached eitherto the sash or window-frame, asshown in the drawings in the two saches. When the sash is closed theroller takes up the screen, so, that it is constantly kept tight and inplace.

My invention also consists in the manner in which the screen is securedat the sides, either by small pins or projections, on which it is hookedas it is unrolled, or by a clamp at the side, as shown in the drawings,or by' both these devices conjointly.

To enable others skilled in the artto make and use my invention, thcfollowing is a description of its construction and operation:

The screen S or S is made of mosquito-net, or any other suitablematerial, and winds on the roller R or R', which is fitted with springsat s s, or any other common mechanicalcontrivance, which will enel-t acontinual tension upon the screen, andadmit of snillcient motion inunrolling to allow the screen to be drawn oi'in open- `ing the sash, andrewind it when closed. n the lower sash, shown 'inthe drawings,`theroller R is secured to the .window-frame F, and the upper edge ofthescreen is secured to a bar,B, which hooks on to, or is otherwise securedto, the sash A, so that it can he readily detached when it is notdesired to have the opening of the window covered by thescreen. When thescreen is unrolled, the edges pass into the groovesg g, and can besecured in any position of the sash by the clamp-bar E, which' isoperated by the eccentric' clamp C, o r any other suitable device. InLthe upper sash, shown in the drawings, the roller R is secured to thesash A', and the upper edge of the screen' is attached to the bar B',which is so attached to 'the window-frame, by any com# mon mechanicalcontrivance, that it can readily be detached,and move up and down withthe, sash when the screen is not desired to cover the opening of thewindow. When the `sash is'opened,-the screen unrolls, as befoiedescribed, but in this case, in place oi' having` the 'edges secured ina groove, g, as in the Vlower sash, another method is shown, viz, theedges are caught upon pins or hooksyb on the barsD, the edges beingguided and pressed against l) by the projection a upon the bracket whichcarries the roller R.

The" operation of my invention is as follows: -When the sash is opened,the screen is unrolled from the roller by the act of opening thewindowin the ordinary manner and covers threopening, the edges being securedas before described. When` the sash is closed, the action of the rollerwinds up the screen, keeping it at a proper tension at all the diierentheights the sash may be placed. Eithericf Athe two methods oi' mountingthe screen herein described may bc used both for the top and bottomsashes.

What claim as my invention, and desire to secure by Letters Patent, is

1. The combination. of the screen and pins b, in the manner and for thepurpose herein set forth.

2. The combination of-the screen and clamp or clamp'ba.r E, in themanner and for the purpose herein set forth.

' CHARLES C. PLAISTED.

Witnesses:

C. W. Coon, Trino. G. ELLIS.

